Table 3.

Characteristics of malignant lymph node stations in PET/CT

Pathology	Adenocarcinoma	Squamous cell carcinoma	P value
Number	32	14
SUVmax	3.1 ± 2.5	5.1 ± 3.4	0.01
Size (short diameter, mm)	5.8 ± 2.5	7.8 ± 3.6	0.05
LN SUV/blood pool SUV	2.1 ± 2.0	2.9 ± 2.0	0.07
LN SUV/primary tumor SUV	0.4 ± 0.3	0.5 ± 0.4	0.38
mHU	82 ± 40	78 ± 42	0.88
aHU	40 ± 32	24 ± 29	0.16

All data represent mean ± standard deviation

LN: lymph node

SUV: standard uptake value

mHU: maximum Hounsfield units

aHU: average Hounsfield units